archiving of SOWACS
proudly sponsored by


this could be
your logo - >
 

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Real-time soil water dynamics in the vadose zone



Dear Bruce and All,

It has been an honor and pleasure to be part of this prestigious group,
almost since its initiation. Please, let me draw your attention to some
of our experience in real-time soil water dynamics in the vadose zone of

the field and vegetable crops, over large areas, in correlation to the
real-time evapotranspiration, rainfall, irrigation, and water table
data.

For the last five years I have been working on the real-time soil water
dynamics in the vadose zone, over large areas, using multisensor
capacitance sensors and monitoring system. In 1994, coming from the
USDA-ARS Water Management Research Laboratory at Fresno, CA.,  I
introduced the new system, and the potential advantages for research
studies, to the scientists of the USDA-ARS-Beltsville Agricultural
Research Center (BARC).  Dr. James L. Starr has used the first two
systems in his long term corn tillage experiment (every 10 min, all year

around) from 1995 through 1998. Jim and I published our first results in

the SSSAJ and in the Soil and Tillage Research in 1997 and 1998. The
search for real-time soil water dynamics at BARC extended fast to the
current sixteen monitoring systems. The EnviroScan systems are spread
over large areas in experiments studying: the environmental impact of
sustainable and conventional vegetable production; preferential flow of
agrochemicals to the surface and to the groundwater; optimization of
agricultural production systems and their influence on riparian areas,
etc. Multidisciplinary research teams are using them successfully.
Our results, presented this year at the 16th World Soil Congress and at
the ASA-CSSA-SSSA Annual Meeting, show that the domain of using
real-time soil water dynamics in the vadose zone, in correlation to
other real-time water balance data, could be further developed.

Real-time water dynamics data might be used to: validate or recalibrate
the existing water balance models over large areas; validate profile
soil water content data obtained from current and future remote sensing
data; monitor waste disposal sites; etc..
As my time of visiting scientist is coming to an end, I would like to
share with you my experience and cooperate in future projects, both in
the US and internationally.

Please, use the address of my company for research, technology transfer
and consulting: PALTIN Intl. Inc., 6309 Sandy Street, Laurel MD, 20707;
Phone/Fax: (301) 725-0604; e-mail icpaltin@bellatlantic.net.

I do wish to ALL of you a Merry Christmas and a Happy and Prosperous New

Year!

Dr. Ioan C. Paltineanu
visiting scientist
USDA, ARS, BARC, NRI, ECL
Bldg. 007, Room 224, BARC-West
10300 Baltimore Ave.
Beltsville, MD 20705-2350
U. S. A.

Phone: 301-504-5032 Fax: 301-504-5048
email: ipaltin@asrr.arsusda.gov
http://hydrolab.arsusda.gov/ecl